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arXiv · 1003.3701

B-mode polarization induced by gravitational waves from kinks on infinite cosmic strings

Masahiro Kawasaki·Koichi Miyamoto·Kazunori Nakayama
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Abstract

We investigate the effect of the stochastic gravitational wave (GW) background produced by kinks on infinite cosmic strings, whose spectrum was derived in our previous work, on the B-mode power spectrum of the cosmic microwave background (CMB) anisotropy. We find that the B-mode polarization due to kinks is comparable to that induced by the motion of the string network and hence the contribution of GWs from kinks is important for estimating the B-mode power spectrum originating from cosmic strings. If the tension of cosmic strings μis large enough i.e., Gμ>~ 10^{-8}, B-mode polarization induced by cosmic strings can be detected by future CMB experiments.

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Masahiro Kawasaki, Koichi Miyamoto, Kazunori Nakayama. 2010-10-25. B-mode polarization induced by gravitational waves from kinks on infinite cosmic strings. https://doi.org/10.1103/physrevd.82.103504

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